Advanced Fibula Quiz

Q1. Why can a fracture near the fibular neck cause foot drop?

• The common fibular nerve is vulnerable at the fibular neck
• The obturator nerve supplies the anterior leg compartment
• The femoral nerve crosses the distal fibula
• The tibial nerve enters the fibular head

Q2. Why is the lateral malleolus important to ankle stability?

• It forms the lateral ankle mortise and provides ligament attachments
• It forms the medial wall of the ankle mortise
• It receives the patellar ligament
• It articulates directly with the calcaneus as its main joint

Q3. Which structures are principal stabilizers of the distal tibiofibular syndesmosis?

• Inferior tibiofibular ligaments and interosseous ligament
• Anterior and posterior cruciate ligaments
• Plantar calcaneonavicular ligament and plantar fascia
• Deltoid ligament alone

Q4. Why can syndesmotic disruption alter ankle mechanics?

• It can widen or destabilize the ankle mortise
• It eliminates the subtalar joint
• It affects only the proximal tibiofibular joint
• It directly separates the femoral head from the acetabulum

Q5. What is the anatomical basis of a Maisonneuve fracture pattern?

• Rotational ankle force can accompany syndesmotic injury and a proximal fibular fracture
• Direct trauma to the patella produces a distal fibular fracture
• Achilles tendon contraction fractures the proximal fibula
• Hip abduction causes an isolated fibular head avulsion

Q6. Why should the ankle be assessed when a proximal fibular fracture follows a rotational injury?

• A distant syndesmotic and ankle injury may coexist
• All proximal fibular fractures are isolated injuries
• The proximal fibula normally articulates directly with the talus
• The ankle cannot be injured if the fracture is proximal

Q7. How does the fibula help organize the compartments of the leg?

• It has no muscle attachments
• Its surfaces and borders provide muscular and fascial attachment sites
• It alone encloses every leg compartment
• It lies outside the deep fascia of the leg

Q8. Why can a segment of fibular shaft be used as a vascularized bone graft?

• The fibula is the main axial weight-bearing bone of the leg
• The entire fibula can always be removed without biomechanical consequences
• A long vascularized shaft segment can be harvested while preserving key ends
• The fibular shaft has no blood supply

Q9. Why is the common fibular nerve at particular risk during surgery around the proximal fibula?

• It has a superficial course around the fibular neck
• It is enclosed within the lateral meniscus
• It runs inside the fibular medullary cavity
• It remains entirely medial to the tibia

Q10. Which statement best integrates the anatomy of the fibula?

• It is a lateral leg bone specialized for attachment and ankle stability with important nerve and syndesmotic relationships
• It is a tarsal bone that forms part of the hindfoot
• It is the main weight-bearing bone between the femur and talus
• It forms the medial ankle and directly articulates with the femoral condyles